EP1013141B1 - Verfahren und anordnung zur wiedergabe eines stereophonen audiosignals - Google Patents
Verfahren und anordnung zur wiedergabe eines stereophonen audiosignals Download PDFInfo
- Publication number
- EP1013141B1 EP1013141B1 EP98924041A EP98924041A EP1013141B1 EP 1013141 B1 EP1013141 B1 EP 1013141B1 EP 98924041 A EP98924041 A EP 98924041A EP 98924041 A EP98924041 A EP 98924041A EP 1013141 B1 EP1013141 B1 EP 1013141B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loudspeakers
- wavefronts
- resultant
- space
- amplitude
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
Definitions
- the invention relates to a method for reproducing a stereophonic audio signal in a room, especially the Passenger cell of a motor vehicle, with several Positions in the room to play speakers acoustic signals are arranged and of an arrangement to this according to the genre of the independent claims.
- surround effect is to be understood here that a located on the longitudinal axis mentioned Listeners have different signals from the left and right Speakers and thus a spatial Sound impression, but usually with a pronounced Inkoplocalmaschine receives what means nothing other than that the listener receives a spatial sound impression, however the sound sources are located as close to or in the head.
- EP-A 0 559 530 discloses a filter arrangement for Processing of numerical audio signals to generate Hall or echo effects. For this, the ones to be given again Audio signals passed through filter banks, in which the original audio signal each time delayed portions of the audio signal with weight factors. The output signals of the recursive filters realized filter banks are left and one right audio channel fed.
- the inventive method and the inventive Arrangement with the features of the independent claims have the advantage that within one extended listening zone within the room to be sounded, especially on both the driver and the Passenger side inside the passenger compartment Motor vehicle with an equally natural hearing impression the impression of a natural distance between the sound sources the reproduction of a stereophonic audio signal is.
- the impression of a natural distance from the Sound sources correspond to the auditory impression of one Listener who actually sits in the concert hall and the Instruments located according to their actual position. For this it is also necessary that the impression of the listener is awakened, sound sources may also outside to locate the room to be sounded, which is achieved by means of the inventive method or the inventive Arrangement is made possible.
- control for Control of the individual loudspeakers arranged in the room the signals for each speaker in terms Amplitude and phase processed.
- the Control also within the room to be sonicated occurring reflections, or their influence on the natural stereo listening impression within the listening zone.
- the basic idea underlying the invention consists in a natural auditory impression of one in a room reproduced stereophonic audio signal on a variety of positions within the room by allowing that at all these positions the audio signals for the left and the right stereo channel, provided that they have the same level have the same loudness.
- This will achieved according to the invention in that a variety of Speakers either along a straight line or around the Are arranged around the room, the speakers being such can be controlled that the wavefronts of the Speakers emitted acoustic signals at least a first resulting wavefront for the left and a second resulting wavefront for the overlay the right channel of the stereophonic audio signal, and that the resulting wave fronts are in an auditory zone cross within the room.
- the resulting Wavefronts represent lines of the same amplitude for the left and right channels of the stereo audio signal .
- points at which the Audio signals for the left and right channels as the same be felt out loud so that at these points Stereo listening impression results.
- loudspeakers in the passenger compartment 10 of the motor vehicle 1 to 7 along the sides of the vehicle and the dashboard arranged speakers 1 and 7 in the left and right rear Side panel, speakers 2 and 6 in the left and right front door trim, speakers 3 and 5 in the left and right corners of the dashboard and the Speaker 4 arranged in the middle of the dashboard is.
- the audio signal for the right channel initially radiated from the right speaker 5, so that of the speaker 5 outgoing wavefront 85 in the Figure 1 already shown the furthest is advanced.
- the staggered Control of the individual speakers using on and the same signal is in the present case by suitably dimensioned time delay elements realized.
- the two resulting Wavefronts whose directions of propagation each have one first share in parallel and a second share each perpendicular to an imaginary axis through the have sonication space, the second part have opposite directions, they cross two resulting wave fronts within one as Designated wide area within the listening zone Passenger compartment of the motor vehicle. Since the two resulting wavefronts for constant amplitude locations represent the signal of the left and right channels, there is a natural stereo listening impression within the listening zone.
- Each of the loudspeakers 1 to 7 is a summing element 31 to 37 upstream, each summing element 31 to 37 each a weighted and time-delayed audio signal for the left and right channels are fed. So everyone is Speakers 1 to 7 with signal components for the left and the right channel of the stereo signal is applied.
- the Weighting of the signal components for the left and right Audio channel and thus the control of the amplitude of the individual speakers reproduced signal components is done by multipliers 41 to 47 and 51 to 57, which the signal components for the left and right Audio channel and further weight factors to theirs Influence are supplied.
- To control the phase or the duration of that from the individual speakers radiated signals are off the multipliers chains Delay elements 11 to 17 for the left and 21 to 27 upstream for the right channel.
- the operation of the arrangement shown in Figure 2 will be explained in more detail using the following example.
- the loudspeakers 1 and 2 arranged in the side panels and 6 and 7 are at a distance 18 from each other present example 0.6 m that in the dashboard arranged speakers 3, 4 and 5 to each other a distance 28 of 0.4 m.
- a resulting wavefront 80 for the right channel that diagonally progresses from the front right to the rear left corner of the passenger compartment, and further a resulting wavefront for the left channel that propagates from the front left to the rear right corner of the passenger compartment has been created
- the values for the delay elements 21 to 27 for the right channel and 11 to 17 for the left channel, and the weighting factors supplied to the multipliers 41 to 47 for the right channel and 51 to 57 for the left channel are determined as follows.
- the weighting factors for influencing the amplitude of the audio signals emitted by the individual loudspeakers were chosen as follows. 41, 57 0.1 42, 56 0.2 43, 55 0.5 44, 54 0.5 45, 53 0.5 46, 52 0.2 47, 51 0.1
- the signal R for the right channel initially after a first time delay 21 of 20 * r a with weighting in the multiplier 55 by a factor of 0.5 via the loudspeaker 5, after a time delay 26 of 25 * r a and Weighting in the multiplier 56 with the factor 0.2 via the loudspeaker 6, after a time delay 21 + 22 of (20 + 43) * r a and weighting with the factor 0.5 in the multiplier 54 via the loudspeaker 4, after one Delay 26 + 27 of (25 + 49) * r a and weighting 0.1 in multiplier 57 via loudspeaker 7, after a delay 21 + 22 + 23 of (20 + 43 + 43) * r a and weighting in multiplier 53 via loudspeaker 3, after delay in delay stages 21, 22, 23 and 24 by (20 + 43 + 43 + 68) * r a and weighting by 0.2 in multiplier 52 via loudspeaker 2 and finally after delay by ( 20 + 43 + 43 + 68 + 49 * r a in the delay
- FIG 3 are a variety of possible locations for Loudspeaker according to the arrangement according to the invention shown.
- speakers 1 to 7 already are arranged are suitable for accommodating further Speakers also the parcel shelf, in the present case with four speakers 91 to 94 and the outer areas of the Footwell for driver and front passenger to accommodate more Speakers 95 and 96.
- FIG. 4 is a block diagram of what is relevant to the invention Part of a car radio 100 as a playback device shown for stereophonic or multi-channel audio signals.
- a digital signal processor 101 which controls, i.e. the time delay elements, the multipliers and the Contains adders of the arrangement shown in Figure 2, are L and R signals for the left and right audio channels, as well as possibly further signals for further audio channels fed.
- the values for the delays of the Delay elements as well as the multipliers weight factors supplied are a memory 102 taken.
- Stand at the output of the digital signal processor the signals for controlling the individual speakers 1 to 7, and possibly further speakers 91 to 96 ready after amplification in a low frequency amplifier 103 are fed to the speakers.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Stereophonic System (AREA)
- Stereophonic Arrangements (AREA)
Description
21, 11 | 20 * ra, |
22, 12 | 43 * ra, |
23, 13 | 43 * ra, |
24, 14 | 68 * ra, |
25, 15 | 49 * ra, |
26, 16 | 25 * ra, |
27, 17 | 49 * ra |
41, 57 | 0,1 |
42, 56 | 0,2 |
43, 55 | 0,5 |
44, 54 | 0,5 |
45, 53 | 0,5 |
46, 52 | 0,2 |
47, 51 | 0,1 |
Claims (6)
- Verfahren zur Wiedergabe eines einen linken und einen rechten Kanal aufweisenden stereophonen Audiosignals in einem Raum, insbesondere der Fahrgastzelle (10) eines Kraftfahrzeugs, wobei an mehreren Positionen in dem Raum Lautsprecher (1 bis 7) zur Wiedergabe von akustischen Signalen angeordnet sind,
wobei den Lautsprechern (1 bis 7) die Signale sowohl des linken, als auch des rechten Kanals jeweils für einen jeden Lautsprecher (1 bis 7) individuell verzögert und amplitudenbewertet zugeführt werden,
dadurch gekennzeichnet, daß die Verzögerung und die Amplitudenbewertung der über die Lautsprecher wiedergegebenen Audiosignale derart eingestellt werden, daß sich die Wellenfronten (83 bis 87) der von den Lautsprechern (1 bis 7) abgestrahlten akustischen Signale zu mindestens einer ersten resultierenden Wellenfront für den linken und einer zweiten resultierenden Wellenfront (80) für den rechten Kanal überlagern, wobei die resultierenden Wellenfronten entlang ihres Verlaufs eine konstante Phase und Amplitude aufweisen,
und daß sich die resultierenden Wellenfronten in einer eine Mehrzahl voneinander entfernter Hörpositionen umfassenden, ausgedehnten Hörzone innerhalb des Raumes kreuzen, so daß sich innerhalb der Hörzone ein Stereo-Höreindruck ergibt. - Anordnung zur Wiedergabe eines einen linken und einen rechten Kanal umfassenden stereophonen Audiosignals in einem Raum, insbesondere der Fahrgastzelle (10) eines Kraftfahrzeugs, wobei an mehreren Positionen innerhalb des Raumes Lautsprecher (1 bis 7) zur Wiedergabe akustischer Signale angeordnet sind,
wobei den Lautsprechern (1 bis 7) jeweils Mittel (31 bis 37) zur Überlagerung der Signale des linken und des rechten Kanals des wiederzugebenden Audiosignals zugeordnet sind, daß den Lautsprechern (1 bis 7) jeweils Mittel zur für jeden Lautsprecher (1 bis 7) individuellen Beeinflussung von Phase (11 bis 17, 21 bis 27) und Amplitude (41 bis 47, 51 bis 57) der Signale des linken und des rechten Kanals zugeordnet sind,
dadurch gekennzeichnet, daß Phase und Amplitude der von den Lautsprechern (1 bis 7) wiedergegebenen Audiosignale derart gewählt sind, daß sich die Wellenfronten (83 bis 87) der von den Lautsprechern (1 bis 7) abgestrahlten akustischen Wellen zu einer ersten resultierenden Wellenfront für den linken Kanal (L) und einer zweiten resultierenden Wellenfront (80) für den rechten Kanal (R) des Stereo-Audiosignals überlagern, entlang derer Phase und Amplitude des Audiosignals konstant sind, und sich die resultierenden Wellenfronten im Bereich einer eine Mehrzahl voneinander entfernter Hörpositionen umfassenden Hörzone innerhalb des Raumes kreuzen, so daß sich im Bereich der Hörzone ein stereophoner Höreindruck ergibt. - Anordnung nach Anspruch 2,
dadurch gekennzeichnet, daß die Lautsprecher (1 bis 7) innerhalb des Raumes um die Hörzone herum angeordnet sind. - Anordnung nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß die Ansteuerung für die Lautsprecher (1 bis 7) Verzögerungsglieder (11 bis 17, 21 bis 27) umfaßt, mit denen die Phasen der von den einzelnen Lautsprechern (1 bis 7) abgestrahlten akustischen Signale so beeinflußt werden, daß die durch Überlagerung der Wellenfronten (83 bis 87) der von den einzelnen Lautsprechern (1 bis 7) abgestrahlten akustischen Signale gebildeten resultierenden Wellenfronten (80) einen vorgegebenen, vorzugsweise linearen Verlauf aufweisen. - Anordnung nach einem der Ansprüche 2 bis 4,
dadurch gekennzeichnet, daß die Ansteuerung für die Lautsprecher (1 bis 7) Verstärker und/oder Abschwächer (41 bis 47, 51 bis 57) aufweist, deren Verstärkungsfaktoren so eingestellt sind, daß sich entlang der durch Überlagerung der Wellenfronten der von den einzelnen Lautsprechern (1 bis 7) abgestrahlten akustischen Signale gebildeten resultierenden Wellenfronten (80) eine konstante Amplitude ergibt. - Anordnung nach einem der Ansprüche 2 bis 5,
dadurch gekennzeichnet, daß die Lautsprecher (1 bis 5) außerhalb der Hörzone senkrecht und/oder parallel zu einer gedachten Längsachse durch den Raum, im Falle einer Fahrgastzelle eines Kraftfahrzeugs senkrecht zur und/oder entlang der Fahrtrichtung, angeordnet sind,
und daß die Verzögerungswerte der Verzögerungsglieder (11 bis 17, 21 bis 27) der Ansteuerung so bemessen sind, daß sich für die Ausbreitungsrichtungen der mindestens zwei resultierenden Wellenfronten (80) jeweils ein erster Anteil parallel und jeweils ein zweiter Anteil senkrecht zu der gedachten Raumachse ergibt, wobei die zweiten Anteile einander entgegengesetzte Richtungen aufweisen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19739425A DE19739425A1 (de) | 1997-09-09 | 1997-09-09 | Verfahren und Anordnung zur Wiedergabe eines sterophonen Audiosignals |
DE19739425 | 1997-09-09 | ||
PCT/DE1998/000943 WO1999013683A1 (de) | 1997-09-09 | 1998-04-03 | Verfahren und anordnung zur wiedergabe eines stereophonen audiosignals |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1013141A1 EP1013141A1 (de) | 2000-06-28 |
EP1013141B1 true EP1013141B1 (de) | 2003-04-23 |
Family
ID=7841689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98924041A Expired - Lifetime EP1013141B1 (de) | 1997-09-09 | 1998-04-03 | Verfahren und anordnung zur wiedergabe eines stereophonen audiosignals |
Country Status (6)
Country | Link |
---|---|
US (1) | US6584202B1 (de) |
EP (1) | EP1013141B1 (de) |
JP (1) | JP2001517005A (de) |
AU (1) | AU744020B2 (de) |
DE (2) | DE19739425A1 (de) |
WO (1) | WO1999013683A1 (de) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000341800A (ja) * | 1999-05-27 | 2000-12-08 | Fujitsu Ten Ltd | 車室内音響システム |
JP2001025099A (ja) * | 1999-07-07 | 2001-01-26 | Matsushita Electric Ind Co Ltd | 音響再生装置 |
US6584205B1 (en) * | 1999-08-26 | 2003-06-24 | American Technology Corporation | Modulator processing for a parametric speaker system |
US6876748B1 (en) * | 1999-10-25 | 2005-04-05 | Harman International Industries, Incorporated | Digital signal processing for symmetrical stereophonic imaging in automobiles |
EP1209949A1 (de) * | 2000-11-22 | 2002-05-29 | Technische Universiteit Delft | Schallwiedergabesystem mit Wellenfeldsynthese unter Verwendung einer Platte mit verteilten Moden |
US6804565B2 (en) * | 2001-05-07 | 2004-10-12 | Harman International Industries, Incorporated | Data-driven software architecture for digital sound processing and equalization |
WO2002098171A1 (en) * | 2001-05-28 | 2002-12-05 | Mitsubishi Denki Kabushiki Kaisha | Vehicle-mounted stereophonic sound field reproducer/silencer |
US7343020B2 (en) * | 2002-09-18 | 2008-03-11 | Thigpen F Bruce | Vehicle audio system with directional sound and reflected audio imaging for creating a personal sound stage |
US6829359B2 (en) * | 2002-10-08 | 2004-12-07 | Arilg Electronics Co, Llc | Multispeaker sound imaging system |
US7706544B2 (en) | 2002-11-21 | 2010-04-27 | Fraunhofer-Geselleschaft Zur Forderung Der Angewandten Forschung E.V. | Audio reproduction system and method for reproducing an audio signal |
JP2004212876A (ja) * | 2003-01-08 | 2004-07-29 | Pioneer Electronic Corp | オーディオ装置 |
DE10321986B4 (de) * | 2003-05-15 | 2005-07-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Pegel-Korrigieren in einem Wellenfeldsynthesesystem |
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JP2005064610A (ja) * | 2003-08-18 | 2005-03-10 | Pioneer Electronic Corp | スピーカの設置および駆動方法 |
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US7653203B2 (en) * | 2004-01-13 | 2010-01-26 | Bose Corporation | Vehicle audio system surround modes |
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WO2006097860A1 (en) * | 2005-03-15 | 2006-09-21 | Koninklijke Philips Electronics N.V. | A device for processing audio data, a method of processing audio data, a program element and a computer-readable medium |
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US8971547B2 (en) * | 2009-01-08 | 2015-03-03 | Harman International Industries, Incorporated | Passive group delay beam forming |
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KR101624904B1 (ko) * | 2009-11-09 | 2016-05-27 | 삼성전자주식회사 | 휴대용 단말기에서 디엔엘에이를 이용하여 멀티 사운드 채널 컨텐츠를 재생하기 위한 장치 및 방법 |
DE102011115278A1 (de) * | 2011-09-29 | 2013-04-04 | Audi Ag | Lautsprechersystem für ein Kraftfahrzeug |
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US9955260B2 (en) | 2016-05-25 | 2018-04-24 | Harman International Industries, Incorporated | Asymmetrical passive group delay beamforming |
JP6670259B2 (ja) * | 2017-01-26 | 2020-03-18 | 日本電信電話株式会社 | 音響再生装置 |
CN113386694B (zh) * | 2021-06-30 | 2022-07-08 | 重庆长安汽车股份有限公司 | 一种布置在汽车座舱内的定向发声系统及汽车 |
JP7528968B2 (ja) | 2022-03-09 | 2024-08-06 | カシオ計算機株式会社 | 音響出力装置、音響出力方法、およびプログラム |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5811159B2 (ja) * | 1979-05-18 | 1983-03-01 | 松下電器産業株式会社 | 車載用音響再生装置 |
NL8001119A (nl) * | 1980-02-25 | 1981-09-16 | Philips Nv | Richtingsonafhankelijk luidsprekerszuil- of vlak. |
JPS5768991A (en) * | 1980-10-16 | 1982-04-27 | Pioneer Electronic Corp | Speaker system |
US5412731A (en) * | 1982-11-08 | 1995-05-02 | Desper Products, Inc. | Automatic stereophonic manipulation system and apparatus for image enhancement |
JPS644200A (en) * | 1987-06-26 | 1989-01-09 | Nissan Motor | Sound field improving device |
JPH0213097A (ja) * | 1988-06-29 | 1990-01-17 | Toa Electric Co Ltd | スピーカ・システム用駆動制御装置 |
US5146507A (en) * | 1989-02-23 | 1992-09-08 | Yamaha Corporation | Audio reproduction characteristics control device |
JP3067140B2 (ja) * | 1989-11-17 | 2000-07-17 | 日本放送協会 | 立体音響再生方法 |
DE4134130C2 (de) * | 1990-10-15 | 1996-05-09 | Fujitsu Ten Ltd | Vorrichtung zum Aufweiten und Ausbalancieren von Schallfeldern |
DE4136022C2 (de) * | 1990-11-01 | 2001-04-19 | Fujitsu Ten Ltd | Vorrichtung zum Aufweiten und Symmetrisieren von Klangfeldern |
US5136650A (en) * | 1991-01-09 | 1992-08-04 | Lexicon, Inc. | Sound reproduction |
US5325435A (en) * | 1991-06-12 | 1994-06-28 | Matsushita Electric Industrial Co., Ltd. | Sound field offset device |
FR2688371B1 (fr) * | 1992-03-03 | 1997-05-23 | France Telecom | Procede et systeme de spatialisation artificielle de signaux audio-numeriques. |
-
1997
- 1997-09-09 DE DE19739425A patent/DE19739425A1/de not_active Withdrawn
-
1998
- 1998-04-03 EP EP98924041A patent/EP1013141B1/de not_active Expired - Lifetime
- 1998-04-03 JP JP2000511335A patent/JP2001517005A/ja active Pending
- 1998-04-03 WO PCT/DE1998/000943 patent/WO1999013683A1/de active IP Right Grant
- 1998-04-03 AU AU76378/98A patent/AU744020B2/en not_active Ceased
- 1998-04-03 DE DE59808087T patent/DE59808087D1/de not_active Expired - Lifetime
- 1998-04-03 US US09/508,160 patent/US6584202B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2001517005A (ja) | 2001-10-02 |
AU7637898A (en) | 1999-03-29 |
AU744020B2 (en) | 2002-02-14 |
US6584202B1 (en) | 2003-06-24 |
DE59808087D1 (de) | 2003-05-28 |
DE19739425A1 (de) | 1999-03-11 |
WO1999013683A1 (de) | 1999-03-18 |
EP1013141A1 (de) | 2000-06-28 |
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